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h264parse: Use slice type to determine if frame is keyframe

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This is the same behaviour as pre-baseparse-refactoring

https://bugzilla.gnome.org/show_bug.cgi?id=705598
This commit is contained in:
Edward Hervey 2013-08-07 09:04:39 +02:00 committed by Edward Hervey
parent b17676a1d5
commit 8074a48594
1 changed files with 12 additions and 8 deletions
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20
gst/videoparsers/gsth264parse.c
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@ -453,10 +453,6 @@ _nal_name (GstH264NalUnitType nal_type)
} }
#endif #endif
/* SPS/PPS/IDR considered key, all others DELTA;
* so downstream waiting for keyframe can pick up at SPS/PPS/IDR */
#define NAL_TYPE_IS_KEY(nt) (((nt) == 5) || ((nt) == 7) || ((nt) == 8))
/* caller guarantees 2 bytes of nal payload */ /* caller guarantees 2 bytes of nal payload */
static void static void
gst_h264_parse_process_nal (GstH264Parse * h264parse, GstH264NalUnit * nalu) gst_h264_parse_process_nal (GstH264Parse * h264parse, GstH264NalUnit * nalu)
@ -476,7 +472,6 @@ gst_h264_parse_process_nal (GstH264Parse * h264parse, GstH264NalUnit * nalu)
/* we have a peek as well */ /* we have a peek as well */
nal_type = nalu->type; nal_type = nalu->type;
h264parse->keyframe |= NAL_TYPE_IS_KEY (nal_type);
GST_DEBUG_OBJECT (h264parse, "processing nal of type %u %s, size %u", GST_DEBUG_OBJECT (h264parse, "processing nal of type %u %s, size %u",
nal_type, _nal_name (nal_type), nalu->size); nal_type, _nal_name (nal_type), nalu->size);
@ -572,18 +567,27 @@ gst_h264_parse_process_nal (GstH264Parse * h264parse, GstH264NalUnit * nalu)
h264parse->frame_start = TRUE; h264parse->frame_start = TRUE;
} }
GST_DEBUG_OBJECT (h264parse, "frame start: %i", h264parse->frame_start); GST_DEBUG_OBJECT (h264parse, "frame start: %i", h264parse->frame_start);
#ifndef GST_DISABLE_GST_DEBUG
{ {
GstH264SliceHdr slice; GstH264SliceHdr slice;
GstH264ParserResult pres;
pres = gst_h264_parser_parse_slice_hdr (nalparser, nalu, &slice, pres = gst_h264_parser_parse_slice_hdr (nalparser, nalu, &slice,
FALSE, FALSE); FALSE, FALSE);
GST_DEBUG_OBJECT (h264parse, GST_DEBUG_OBJECT (h264parse,
"parse result %d, first MB: %u, slice type: %u", "parse result %d, first MB: %u, slice type: %u",
pres, slice.first_mb_in_slice, slice.type); pres, slice.first_mb_in_slice, slice.type);
if (pres == GST_H264_PARSER_OK) {
switch (slice.type) {
case 2:
case 4:
case 7:
case 9:
h264parse->keyframe |= TRUE;
default:
break;
}
}
} }
#endif
if (G_LIKELY (nal_type != GST_H264_NAL_SLICE_IDR && if (G_LIKELY (nal_type != GST_H264_NAL_SLICE_IDR &&
!h264parse->push_codec)) !h264parse->push_codec))
break; break;